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AS8075 — Microsoft Corporation Threat Intelligence

Microsoft Corporation

Autonomous System Threat Intelligence

Network Threat Summary

AS8075 (Microsoft Corporation) has 156,951 malicious IP addresses with 6,785,728 abuse reports across 35 countries. First activity recorded 2022-07-06, most recent activity 2026-10-04.

Threat Profile: The primary attack categories observed from this network are reconnaissance, reputation low, malware infrastructure. This autonomous system is among the most prolific threat sources globally, with an exceptionally high concentration of malicious IP addresses. Affected countries include US, JP, IN.

Risk Assessment: CRITICAL - This autonomous system is a major source of malicious activity, ranking in the top 1% of threat networks globally. Consider blocking the entire ASN or implementing strict rate limiting.

Unique Malicious IPs
156,951
Total Abuse Reports
6,785,728
Countries Affected
35
First Seen
2022-07-06

Top Attack Categories

  • Reconnaissance 2,816,020 reports
  • Reputation Low 332,075 reports
  • Malware Infrastructure 228,034 reports
  • Suspicious Activity 177,510 reports
  • Aggregated Threat 66,982 reports

Top Affected Countries

  • US 3,848,047 reports
  • JP 316,567 reports
  • IN 168,958 reports

Most Reported IPs

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